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A note on the stability and boundedness results of solutions of certain fourth order differential equations. (English) Zbl 1069.34054
Summary: The purpose of this paper is to investigate the asymptotic stability of the zero solution of $x^{(4)}+\varphi(\ddot x)\dddot+f(x,\dot x)+h(x)=0$ with $p\equiv 0$ and the boundedness of all solutions of $x^{(4)}+\varphi(\ddot x)\dddot x+f(x,\dot x)\ddot x+g(\dot x)+h(x)= 0$ with $p\ne 0$. The results obtained here revise, improve and include some results in the literature.

##### MSC:
 34C11 Qualitative theory of solutions of ODE: growth, boundedness 34D20 Stability of ODE
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##### References:
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